Latest Chris Danforth Stories

Many researchers have tried to read Twitter’s tea leaves for insight into a variety of things, including the stock market. Now a team from the University of Vermont is using statistics culled from the popular social networking site to gauge society’s ‘happiness index’ on a day-to-day basis.

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.